Add Gregory P. Smith to NEWS entry contributors

Author: gpshead

Misc/NEWS.d/next/Library/2025-11-22-20-30-00.gh-issue-141860.frksvr.rst

@@ -2,4 +2,4 @@ Add an ``on_error`` keyword-only parameter to
 :func:`multiprocessing.set_forkserver_preload` to control how import failures
 during module preloading are handled. Accepts ``'ignore'`` (default, silent),
 ``'warn'`` (emit :exc:`ImportWarning`), or ``'fail'`` (raise exception).
-Contributed by Nick Neumann.
+Contributed by Nick Neumann and Gregory P. Smith.